title
Java Video Tutorial 2

description
CODE IS HERE: http://wp.me/p1U2FZ-1vf Best Java Book : http://goo.gl/FtKp0m I continue my Java Video Tutorial. I show you how to import class libraries, except user input, check for valid input, catch errors in input, a bunch of math functions and more.

detail
{'title': 'Java Video Tutorial 2', 'heatmap': [{'end': 134.826, 'start': 91.48, 'weight': 0.753}, {'end': 188.276, 'start': 163.407, 'weight': 0.721}], 'summary': 'Tutorial covers java programming basics, including void functions, string objects, and usage of java utility library and scanner object for user input. it also introduces if statements, basic operations, and java math functions, demonstrating their functionality with practical examples.', 'chapters': [{'end': 180.532, 'segs': [{'end': 28.223, 'src': 'embed', 'start': 0.097, 'weight': 0, 'content': [{'end': 4.178, 'text': 'Well hello internet and welcome to part two of my Java video tutorial series.', 'start': 0.097, 'duration': 4.081}, {'end': 8.859, 'text': "In this part I'm going to cover a whole bunch of other different things, like accepting user input,", 'start': 4.378, 'duration': 4.481}, {'end': 12.879, 'text': 'a whole bunch of math functions and a whole bunch of other random things as we come about.', 'start': 8.859, 'duration': 4.02}, {'end': 18.701, 'text': "So what I'm going to do first is I'm going to go over here on the left side of the screen and I'm going to come down to default package.", 'start': 12.959, 'duration': 5.742}, {'end': 21.601, 'text': "right click on that, go new and I'm using Eclipse here.", 'start': 18.701, 'duration': 2.9}, {'end': 24.522, 'text': "If you didn't watch part one of this tutorial you should definitely check it out.", 'start': 21.621, 'duration': 2.901}, {'end': 25.822, 'text': "And I'm going to click on files.", 'start': 24.542, 'duration': 1.28}, {'end': 28.223, 'text': "I'm going to call this JavaLesson2.java.", 'start': 25.942, 'duration': 2.281}], 'summary': 'Java tutorial covering user input, math functions, and eclipse usage.', 'duration': 28.126, 'max_score': 0.097, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg97.jpg'}, {'end': 71.01, 'src': 'embed', 'start': 43.85, 'weight': 1, 'content': [{'end': 48.692, 'text': "All this means is I'm going to import a bunch of functions and methods that I want to be able to use here.", 'start': 43.85, 'duration': 4.842}, {'end': 50.032, 'text': 'So you just go Import.', 'start': 48.832, 'duration': 1.2}, {'end': 51.473, 'text': "And I'm going to go Java.", 'start': 50.052, 'duration': 1.421}, {'end': 58.779, 'text': "util.scanner And this guy's going to help me be able to accept user input, which is going to be really cool.", 'start': 52.194, 'duration': 6.585}, {'end': 66.266, 'text': 'And if by chance you wanted to import the entire Java utility library, you would just do it this way and put a star there.', 'start': 59.019, 'duration': 7.247}, {'end': 68.187, 'text': 'And that would install everything.', 'start': 66.446, 'duration': 1.741}, {'end': 71.01, 'text': 'So everything will be available for you to use in that situation.', 'start': 68.247, 'duration': 2.763}], 'summary': 'Import java util scanner for user input, or import entire java utility library to access all functionalities.', 'duration': 27.16, 'max_score': 43.85, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg43850.jpg'}, {'end': 180.532, 'src': 'heatmap', 'start': 91.48, 'weight': 3, 'content': [{'end': 94.502, 'text': "Now, we're going to create a new scanner object.", 'start': 91.48, 'duration': 3.022}, {'end': 100.386, 'text': 'And this guy is just going to allow people to be able to ask our program different questions, such as enter a number,', 'start': 94.722, 'duration': 5.664}, {'end': 101.987, 'text': 'as you see here on the right side of the screen.', 'start': 100.386, 'duration': 1.601}, {'end': 107.852, 'text': 'And remember, from before, static just means that only a class can call for this statement to execute.', 'start': 102.088, 'duration': 5.764}, {'end': 113.035, 'text': "So we're going to go static, and we're going to call scanner, which is the scanner object here.", 'start': 107.992, 'duration': 5.043}, {'end': 115.597, 'text': "And we're going to give it a name of user input.", 'start': 113.375, 'duration': 2.222}, {'end': 122.954, 'text': 'And anytime you want to create a new scanner object, you have to type in the word new and then scanner.', 'start': 116.027, 'duration': 6.927}, {'end': 124.395, 'text': "You're always going to do this.", 'start': 123.234, 'duration': 1.161}, {'end': 130.741, 'text': 'And then what you have to do is define the input stream that you want the scanner object to look at for input.', 'start': 124.596, 'duration': 6.145}, {'end': 134.826, 'text': "And that's going to be system in, which is going to be the user's keyboard.", 'start': 130.862, 'duration': 3.964}, {'end': 136.247, 'text': "then what we're going to do?", 'start': 135.046, 'duration': 1.201}, {'end': 141.171, 'text': "now that we have the scanner tool set up, we're going to go public static void,", 'start': 136.247, 'duration': 4.924}, {'end': 147.716, 'text': "and void just means that the main function that every one of our programs must have does not return a value when it's done.", 'start': 141.171, 'duration': 6.545}, {'end': 149.277, 'text': "execute, and we're going to define that.", 'start': 147.716, 'duration': 1.561}, {'end': 158.124, 'text': "we're going to need a series of string objects called args to be accepted into this guy and just like before don't worry about that,", 'start': 149.277, 'duration': 8.847}, {'end': 159.866, 'text': "yet we're going to get into that later on.", 'start': 158.124, 'duration': 1.742}, {'end': 163.347, 'text': "Then we're going to want to print a message out on our screen.", 'start': 160.226, 'duration': 3.121}, {'end': 165.247, 'text': "So we're going to use system out.", 'start': 163.407, 'duration': 1.84}, {'end': 168.768, 'text': "And we're going to use print this time instead of print line.", 'start': 165.648, 'duration': 3.12}, {'end': 175.77, 'text': 'The only difference between those two is print does not cause a carriage return after it prints stuff out on the screen.', 'start': 168.929, 'duration': 6.841}, {'end': 178.051, 'text': 'And println does.', 'start': 176.031, 'duration': 2.02}, {'end': 179.392, 'text': "So that's the only difference there.", 'start': 178.251, 'duration': 1.141}, {'end': 180.532, 'text': 'No reason to worry about it.', 'start': 179.472, 'duration': 1.06}], 'summary': 'Creating a new scanner object and defining its input stream for user input.', 'duration': 78.444, 'max_score': 91.48, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg91480.jpg'}], 'start': 0.097, 'title': 'Java programming basics and utility libraries', 'summary': 'Covers java programming basics, including void functions and string objects, and the usage of java utility library and scanner object for user input, with practical demonstrations. it also explains importing functions and methods in java, emphasizing the creation and usage of a new scanner object.', 'chapters': [{'end': 43.71, 'start': 0.097, 'title': 'Java tutorial part 2', 'summary': 'Covers a variety of topics including accepting user input, math functions, and importing external classes using eclipse, with an emphasis on practical demonstrations rather than theoretical explanations.', 'duration': 43.613, 'highlights': ['The tutorial covers a variety of topics including accepting user input, math functions, and importing external classes using Eclipse. The chapter covers a whole bunch of different things, like accepting user input, math functions, and importing external classes using Eclipse.', 'Practical demonstration emphasized over theoretical explanations. The emphasis is on practical demonstrations rather than theoretical explanations.']}, {'end': 141.171, 'start': 43.85, 'title': 'Java utility library and scanner object', 'summary': 'Explains how to import functions and methods in java, specifically focusing on the java utility library and the scanner object for accepting user input in a program, while also outlining the process of creating a new scanner object and its usage.', 'duration': 97.321, 'highlights': ['Importing the entire Java utility library allows access to all functionalities, while importing specific functions like scanner is also possible. By importing the entire Java utility library, everything will be available for use, but the focus here is on importing the scanner specifically for user input.', "Creating a new scanner object to accept user input involves defining the input stream as the user's keyboard and using the 'new scanner' command. The process of creating a new scanner object involves defining the input stream as the user's keyboard and using the 'new scanner' command to set up the scanner tool for input.", "The 'public static void' statement is used in Java for defining a method that can be called by a class without instantiating an object of the class. The 'public static void' statement is used to define a method that can be called by a class without needing to create an instance of the class."]}, {'end': 180.532, 'start': 141.171, 'title': 'Java programming basics', 'summary': 'Explains the basics of java programming, including the concept of void functions, accepting string objects as arguments, and the difference between print and println functions in java.', 'duration': 39.361, 'highlights': ['The chapter covers the concept of void functions, which do not return a value when executed.', 'It explains the process of accepting string objects as arguments in Java functions.', 'The difference between the print and println functions in Java is highlighted, with print not causing a carriage return after printing, while println does.']}], 'duration': 180.435, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg97.jpg', 'highlights': ['The tutorial covers a variety of topics including accepting user input, math functions, and importing external classes using Eclipse.', 'Importing the entire Java utility library allows access to all functionalities, while importing specific functions like scanner is also possible.', 'Practical demonstration emphasized over theoretical explanations.', "Creating a new scanner object to accept user input involves defining the input stream as the user's keyboard and using the 'new scanner' command.", "The 'public static void' statement is used in Java for defining a method that can be called by a class without instantiating an object of the class.", 'The chapter covers the concept of void functions, which do not return a value when executed.', 'It explains the process of accepting string objects as arguments in Java functions.', 'The difference between the print and println functions in Java is highlighted, with print not causing a carriage return after printing, while println does.']}, {'end': 812.373, 'segs': [{'end': 224.431, 'src': 'embed', 'start': 180.652, 'weight': 0, 'content': [{'end': 184.313, 'text': "And then I'm going to say your favorite number.", 'start': 180.652, 'duration': 3.661}, {'end': 188.276, 'text': "I'm going to ask them for their favorite number and put a little space after that.", 'start': 184.713, 'duration': 3.563}, {'end': 190.257, 'text': "And don't forget to put the semicolon in there.", 'start': 188.396, 'duration': 1.861}, {'end': 193.5, 'text': "And then I'm going to introduce you to the if statement.", 'start': 190.478, 'duration': 3.022}, {'end': 195.682, 'text': 'It is what is called a conditional statement.', 'start': 193.62, 'duration': 2.062}, {'end': 201.947, 'text': "And just simply what that means is it's going to perform certain actions if something is true.", 'start': 195.862, 'duration': 6.085}, {'end': 203.748, 'text': "So we're going to say if.", 'start': 202.187, 'duration': 1.561}, {'end': 206.645, 'text': 'user, and this is going to be a nice little tool.', 'start': 204.384, 'duration': 2.261}, {'end': 214.427, 'text': 'input dot has next int and what this function does right here or method is.', 'start': 206.645, 'duration': 7.782}, {'end': 224.431, 'text': 'it is saying if the next thing typed into the keyboard is an integer, so if the person types in a number that does not have decimal places,', 'start': 214.427, 'duration': 10.004}], 'summary': 'Introduction to if statement and input validation for integers.', 'duration': 43.779, 'max_score': 180.652, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg180652.jpg'}, {'end': 347.545, 'src': 'embed', 'start': 309.542, 'weight': 2, 'content': [{'end': 310.803, 'text': 'And that is an integer.', 'start': 309.542, 'duration': 1.261}, {'end': 314.945, 'text': "So we're saying that we expect the user to enter an integer.", 'start': 310.843, 'duration': 4.102}, {'end': 319.648, 'text': 'If we wanted to instead get a double, we would have next double.', 'start': 315.125, 'duration': 4.523}, {'end': 322.249, 'text': "I think you're starting to see exactly where we're going here.", 'start': 319.668, 'duration': 2.581}, {'end': 326.92, 'text': 'Or next float, if we expected a float value.', 'start': 322.779, 'duration': 4.141}, {'end': 331.021, 'text': "And if we expected a string, which is what you're going to use most of the time.", 'start': 327.12, 'duration': 3.901}, {'end': 332.181, 'text': 'Next line.', 'start': 331.201, 'duration': 0.98}, {'end': 334.842, 'text': "And of course there's also boolean byte long and short.", 'start': 332.421, 'duration': 2.421}, {'end': 342.444, 'text': "And just so you know, if they enter a type that is not valid, which means in this situation, if they enter something that's not an integer,", 'start': 335.062, 'duration': 7.382}, {'end': 344.044, 'text': 'your program will crash.', 'start': 342.444, 'duration': 1.6}, {'end': 346.605, 'text': "But we're learning here and eventually we'll get around that.", 'start': 344.224, 'duration': 2.381}, {'end': 347.545, 'text': "So don't worry about it.", 'start': 346.665, 'duration': 0.88}], 'summary': 'Explaining java input types: integer, double, float, string, boolean, byte, long, short. invalid input may cause program to crash.', 'duration': 38.003, 'max_score': 309.542, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg309542.jpg'}, {'end': 755.99, 'src': 'embed', 'start': 727.129, 'weight': 1, 'content': [{'end': 729.61, 'text': 'you want to increment it or raise it by one?', 'start': 727.129, 'duration': 2.481}, {'end': 732.191, 'text': 'no problem, just put two pluses right, like that.', 'start': 729.61, 'duration': 2.581}, {'end': 738.536, 'text': "there's shorthand ways to do a couple different things inside of java or kind of, And Java also has a math library.", 'start': 732.191, 'duration': 6.345}, {'end': 739.257, 'text': "that's kind of cool.", 'start': 738.536, 'duration': 0.721}, {'end': 742.219, 'text': "It has a whole bunch of different things, which I'm not going to touch on most of them.", 'start': 739.277, 'duration': 2.942}, {'end': 745.882, 'text': "Let's say you wanted to find the absolute value for a number.", 'start': 742.419, 'duration': 3.463}, {'end': 749.064, 'text': "So let's just call this number abs.", 'start': 746.302, 'duration': 2.762}, {'end': 755.99, 'text': "It's equal to, you type in math with uppercase M, followed by abs, absolute value.", 'start': 749.084, 'duration': 6.906}], 'summary': 'Java has shorthand ways to perform mathematical operations, including finding absolute values using the math library.', 'duration': 28.861, 'max_score': 727.129, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg727129.jpg'}], 'start': 180.652, 'title': 'Java if statement and basic operations', 'summary': 'Introduces the if statement in java, explaining its functionality for condition-based actions, and covers java input, arithmetic operations, and math library functions. it provides examples of different if statement versions to check user input.', 'chapters': [{'end': 288.11, 'start': 180.652, 'title': 'Introduction to if statement in java', 'summary': 'Introduces the if statement in java, explaining its functionality to perform certain actions based on a condition, and provides examples of different versions to check if the user input is an integer, double, float, boolean, byte, long, or short.', 'duration': 107.458, 'highlights': ['The chapter introduces the if statement in Java, explaining its functionality to perform certain actions based on a condition The if statement is introduced as a conditional statement in Java that performs actions based on a condition.', 'Provides examples of different versions to check if the user input is an integer, double, float, boolean, byte, long, or short Examples are given for different versions of checking user input, including integer, double, float, boolean, byte, long, and short.', 'Explains the functionality of input dot has next int method for checking if the next input is an integer The input dot has next int method is explained as checking if the next input from the user is an integer.']}, {'end': 812.373, 'start': 288.11, 'title': 'Basic java input and mathematical operations', 'summary': 'Covers the basics of java input and mathematical operations, including user input for integers and doubles, handling invalid input, performing arithmetic operations, shorthand arithmetic operations, and using the math library functions for absolute value, maximum, and minimum comparisons.', 'duration': 524.263, 'highlights': ['The chapter covers the basics of Java input and mathematical operations Covers the foundational concepts of user input and basic mathematical operations in Java.', 'Including user input for integers and doubles Explains the use of nextInt and nextDouble for receiving user input and storing it in variables.', 'Handling invalid input, performing arithmetic operations, shorthand arithmetic operations, and using the math library functions for absolute value, maximum, and minimum comparisons Discusses handling invalid input, performing arithmetic operations, shorthand arithmetic operations, and using math library functions for absolute value, maximum, and minimum comparisons.']}], 'duration': 631.721, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg180652.jpg', 'highlights': ['The chapter introduces the if statement in Java, explaining its functionality to perform certain actions based on a condition', 'The chapter covers the basics of Java input and mathematical operations', 'Provides examples of different versions to check if the user input is an integer, double, float, boolean, byte, long, or short', 'Explains the functionality of input dot has next int method for checking if the next input is an integer', 'Including user input for integers and doubles', 'Handling invalid input, performing arithmetic operations, shorthand arithmetic operations, and using the math library functions for absolute value, maximum, and minimum comparisons']}, {'end': 1024.752, 'segs': [{'end': 852.756, 'src': 'embed', 'start': 812.373, 'weight': 0, 'content': [{'end': 814.695, 'text': 'this is a comment inside of Java.', 'start': 812.373, 'duration': 2.322}, {'end': 820.018, 'text': 'And if you want to put in multi-line comments, should put a forward slash star.', 'start': 815.155, 'duration': 4.863}, {'end': 823.72, 'text': 'And Eclipse is nice enough to go in there and allow you to put all types of comments.', 'start': 820.118, 'duration': 3.602}, {'end': 826.281, 'text': 'And comments are completely ignored inside of Java.', 'start': 823.8, 'duration': 2.481}, {'end': 831.444, 'text': 'If you want to return the square root of an argument, well, of course, you have to pass it a double.', 'start': 826.421, 'duration': 5.023}, {'end': 834.805, 'text': "And let's just say square root is equal to.", 'start': 832.083, 'duration': 2.722}, {'end': 838.647, 'text': 'Call the math.sqrt function.', 'start': 835.085, 'duration': 3.562}, {'end': 842.189, 'text': "And let's say you want to find the square root of 5.23.", 'start': 839.007, 'duration': 3.182}, {'end': 843.99, 'text': "That's exactly what it's going to do.", 'start': 842.189, 'duration': 1.801}, {'end': 845.351, 'text': "And it's going to return a double.", 'start': 844.09, 'duration': 1.261}, {'end': 847.132, 'text': 'So make sure this guy is a double.', 'start': 845.411, 'duration': 1.721}, {'end': 848.853, 'text': 'That this variable here is a double.', 'start': 847.292, 'duration': 1.561}, {'end': 852.756, 'text': 'And there are numerous different ways to round numbers inside of Java.', 'start': 849.193, 'duration': 3.563}], 'summary': 'Java allows multi-line comments, math.sqrt returns double for square root of 5.23.', 'duration': 40.383, 'max_score': 812.373, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg812373.jpg'}, {'end': 970.459, 'src': 'embed', 'start': 889.305, 'weight': 2, 'content': [{'end': 898.67, 'text': 'So if, instead of using ceiling to round a number up, we want to round a number down, in this situation to 5, in this situation right here to 6,,', 'start': 889.305, 'duration': 9.365}, {'end': 900.591, 'text': 'we would instead call floor.', 'start': 898.67, 'duration': 1.921}, {'end': 901.752, 'text': 'Of course, delete that.', 'start': 900.851, 'duration': 0.901}, {'end': 905.174, 'text': 'So this is going to round this number down to 5.', 'start': 901.852, 'duration': 3.322}, {'end': 906.154, 'text': 'And just put this in here.', 'start': 905.174, 'duration': 0.98}, {'end': 908.465, 'text': "So that's 6, and that's 5.", 'start': 906.354, 'duration': 2.111}, {'end': 913.688, 'text': "And if you want to round based off of the fraction, meaning if it's 5.5, it's going to automatically round to 6.", 'start': 908.465, 'duration': 5.223}, {'end': 917.531, 'text': "But if it's 5.2, it's going to automatically round downwards to 5.", 'start': 913.688, 'duration': 3.843}, {'end': 920.953, 'text': 'Of course, there is a round function inside of Java.', 'start': 917.531, 'duration': 3.422}, {'end': 924.015, 'text': "And guess what it's called? Let's just call it number round.", 'start': 921.133, 'duration': 2.882}, {'end': 926.777, 'text': 'And it is R-O-U-N-D, round.', 'start': 924.475, 'duration': 2.302}, {'end': 931.578, 'text': "And this guy is, since it's 5.2, going to round this to 5.", 'start': 927.077, 'duration': 4.501}, {'end': 935.56, 'text': 'And if it was 5.6, it would round it to 6.', 'start': 931.578, 'duration': 3.982}, {'end': 939.701, 'text': "And then as the final thing, I'm going to show you how to get some random numbers inside of Java.", 'start': 935.56, 'duration': 4.141}, {'end': 942.782, 'text': "There's actually a bunch of different ways, but I'm going to show you the simplest way.", 'start': 939.721, 'duration': 3.061}, {'end': 946.923, 'text': "Let's say you wanted to get a random number, so I'm just going to call it int random number.", 'start': 942.842, 'duration': 4.081}, {'end': 952.105, 'text': "And I'm going to put my little cast tool inside here so that I make sure it returns an int.", 'start': 947.244, 'duration': 4.861}, {'end': 954.806, 'text': "And I'm going to go math.random.", 'start': 952.485, 'duration': 2.321}, {'end': 965.037, 'text': 'call this little function here and it is going to actually create a random number that is between the values of point zero through point nine, nine,', 'start': 955.233, 'duration': 9.804}, {'end': 965.617, 'text': 'nine, nine, nine.', 'start': 965.037, 'duration': 0.58}, {'end': 970.459, 'text': "it doesn't actually get to one, okay, so that's what this is going to return, meaning math, random.", 'start': 965.617, 'duration': 4.842}], 'summary': 'The transcript discusses rounding numbers up and down, using the functions ceil and floor in java, and also demonstrates how to generate random numbers.', 'duration': 81.154, 'max_score': 889.305, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg889305.jpg'}, {'end': 1024.752, 'src': 'embed', 'start': 1008.78, 'weight': 9, 'content': [{'end': 1014.264, 'text': "So there's a whole bunch of different ways you can use math functions and a preview of the if statement,", 'start': 1008.78, 'duration': 5.484}, {'end': 1018.668, 'text': 'and a whole bunch of other different things like importing classes and all the other stuff that we covered.', 'start': 1014.264, 'duration': 4.404}, {'end': 1020.349, 'text': 'Leave any questions or comments below.', 'start': 1018.788, 'duration': 1.561}, {'end': 1024.031, 'text': 'And yes, I promise I will completely cover Java in this video tutorial.', 'start': 1020.469, 'duration': 3.562}, {'end': 1024.752, 'text': 'Until next time.', 'start': 1024.05, 'duration': 0.702}], 'summary': 'Java tutorial covers math functions, if statement, class importing, and promises full coverage.', 'duration': 15.972, 'max_score': 1008.78, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg1008780.jpg'}], 'start': 812.373, 'title': 'Java math functions and operations', 'summary': 'Covers java comments for code documentation, number operations including square root and rounding, usage of math functions like ceiling and floor, obtaining random numbers, and math.random function for generating random numbers between specified ranges.', 'chapters': [{'end': 889.145, 'start': 812.373, 'title': 'Java comments and number operations', 'summary': 'Explains how to use comments in java for code documentation and demonstrates various number operations like finding the square root of a number and rounding numbers using different methods.', 'duration': 76.772, 'highlights': ['The chapter highlights the usage of comments in Java for documentation and mentions that Eclipse allows different types of comments, which are completely ignored in Java.', 'It demonstrates finding the square root of a number, such as 5.23, using the math.sqrt function, which returns a double as the result.', 'The chapter explains the different ways to round numbers in Java, such as returning the ceiling of a number using the math.ceil function and casting the returned value to an integer.', 'It mentions the usage of the math.ceil function, which returns a double, and demonstrates how to force it to return an integer by using a cast feature.']}, {'end': 946.923, 'start': 889.305, 'title': 'Java math functions and random numbers', 'summary': "Covers the usage of math functions in java, including rounding up and down using ceiling and floor functions, and obtaining random numbers using the 'round' function and generating random numbers.", 'duration': 57.618, 'highlights': ["The 'ceiling' function in Java can be used to round a number up to the nearest whole number, for example, rounding 5.2 to 6.", "The 'floor' function in Java can be used to round a number down to the nearest whole number, for example, rounding 5.6 to 5.", "The 'round' function in Java automatically rounds a number to the nearest whole number based on the decimal value, for example, rounding 5.2 to 5 and 5.6 to 6.", "In Java, random numbers can be obtained using different methods, with the simplest method involving the use of 'int random number'."]}, {'end': 1024.752, 'start': 947.244, 'title': 'Using math.random in java', 'summary': 'Explains the usage of math.random function in java to generate random numbers between specified ranges, such as 0 to 10, and demonstrates its application in a code example. it also hints at covering various other aspects of java programming.', 'duration': 77.508, 'highlights': ['Demonstrating usage of Math.random function to generate random numbers between specified ranges, such as 0 to 10. The transcript demonstrates the usage of Math.random function to generate random numbers between specified ranges, such as 0 to 10, by using the concept of maximum number that should not appear (11 in this case) and then prints out the random number generated.', 'Explaining the application of Math.random in a code example. The transcript showcases the application of Math.random in a code example, where it generates and prints out a random number between 0 and 10 using the function Math.random.', 'Hinting at covering various other aspects of Java programming in the video tutorial. The transcript mentions covering various other aspects of Java programming, such as if statement, importing classes, and more, in the video tutorial.']}], 'duration': 212.379, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/yYN8u90MKCg/pics/yYN8u90MKCg812373.jpg', 'highlights': ['Covers java comments for code documentation and different types of comments in Eclipse.', 'Demonstrates finding the square root of a number using the math.sqrt function.', 'Explains rounding numbers in Java using math functions like ceil and casting.', "Usage of 'ceiling' function to round a number up to the nearest whole number.", "Usage of 'floor' function to round a number down to the nearest whole number.", "Demonstrates the 'round' function in Java for automatic rounding of numbers.", "Methods for obtaining random numbers in Java, including using 'int random number'.", 'Demonstrates usage of Math.random function to generate random numbers between specified ranges.', 'Application of Math.random in a code example to generate random numbers between specified ranges.', 'Mentions covering various other aspects of Java programming in the video tutorial.']}], 'highlights': ['The tutorial covers a variety of topics including accepting user input, math functions, and importing external classes using Eclipse.', 'Importing the entire Java utility library allows access to all functionalities, while importing specific functions like scanner is also possible.', 'Practical demonstration emphasized over theoretical explanations.', "The 'public static void' statement is used in Java for defining a method that can be called by a class without instantiating an object of the class.", 'The chapter introduces the if statement in Java, explaining its functionality to perform certain actions based on a condition', 'Provides examples of different versions to check if the user input is an integer, double, float, boolean, byte, long, or short', 'Explains the functionality of input dot has next int method for checking if the next input is an integer', 'Covers java comments for code documentation and different types of comments in Eclipse.', 'Demonstrates finding the square root of a number using the math.sqrt function.', 'Explains rounding numbers in Java using math functions like ceil and casting.', "Methods for obtaining random numbers in Java, including using 'int random number'.", 'Demonstrates usage of Math.random function to generate random numbers between specified ranges.']}